1. The problem statement, all variables and given/known data Question: An engine is used to pull a train of two cars out of a mine. The floor slopes upward at an angle of 22 degrees. Each car has a mass of 1.1x10^4 Kg and normally travels without friction on the tracks. The engine can exert a maximum force of 1.6x10^5 N on car A. If the engineer again throttles back so that the force exerted by the engine on car A decreases at the constant rate of 2.9 N per second, how long before the train stops moving up the track? Assume the original speed was 3.4 m/s 2. Relevant equations F= Fmax-2.9t acceleration=(Fmax-2.9t-mgsin(x))/m 3. The attempt at a solution [(Fmax-mgsin(x))/m]T-[(1.45/m)]T^2=0 incase u havnt realized we're solving for "T"